Arquette already has a nine-year-old daughter from his marriage to Friends star Courteney Cox, which ended in 2010.

MCLarty and Arquette have yet to confirm the pregnancy reports, but the news comes less than a week after the recovering addict shocked fans by making a drunken call to radio host pal Howard Stern almost two years after checking into rehab at the beginning of 2011 for alcohol-related issues.